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Finding the Fourth Proportional to 181,172.98, 250,010.36 and 100,605.61

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Solution

The fourth proportional to 181,172.98, 250,010.36 and 100,605.61 is: 138,831.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,172.98 : 250,010.36 = 100,605.61 : x
  2. Step 2: Convert to fraction form
    181,172.98/250,010.36 = 100,605.61/x
  3. Step 3: Cross multiply
    181,172.98x = 250,010.36 × 100,605.61
  4. Step 4: Simplify right side
    181,172.98x = 25,152,444,271.09
  5. Step 5: Solve for x
    x = 25,152,444,271.09/181,172.98
  6. Step 6: Final answer
    x = 138,831.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.